Patent US3573916A successfully refreshed from Google Patents.
US3573916A
Expired / Lapsed
US
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Method for preparing color elements providing mottle-free dye images
Assignee: Eastman Kodak Co
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Filing: 1968-04-08
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Granted: 1971-04-06
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Expires: 1988-04-08
Abstract
Abstract MOTTLING OF DYE IMAGES IN COLOR COUPLER-BEARING SILVER HALIDE EMULSIONS WHICH HAVE BEEN COATED ON ELECTRON BOMBARDED HYDROPHOBIC SURFACES WITHIN ABOUT 30 MINUTES AFTER BOMBARDMENT IS SUBSTANTIALLY ELIMINATED BY USING SULFO-SUBSTITUTED CYANINE OR MEROCYANINE SPECTRAL SENSITIZING DYES.
Inventors
- 👤 Richard G Yost
- 👤 Irving S Willison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:30
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/08; G03C1/10; G03C1/102; G03C1/12; G03C1/76; G03C1/775; G03C1/79; G03C1/91; G03C1/915; Y; Y10; Y10S; Y10S430/00; Y10S430/138
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-04-05 | 1974-10-05 | 1975-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-05 | 1978-10-05 | 1979-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-05 | 1982-10-05 | 1983-04-06 | $7700.00 | Window Closed / Lapsed |